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US947904.pdf (file size: 184 KB, MIME type: application/pdf)

Patent No. 947,904. “Floating and Luminous Line-Carrying Rocket"; granted to HenriE. A. Guerard, of Graville Ste. Honorine, France.

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current22:43, 1 April 2020 (184 KB)RobertG (Talk | contribs) (Patent No. 947,904. “Floating and Luminous Line-Carrying Rocket"; granted to HenriE. A. Guerard, of Graville Ste. Honorine, France.)

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